21160160

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{2699}}^1$

素因数の和:2728

約数の個数: 72

約数和(自身を含む): 58174200

約数和(自身を除く): 37014040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 2699, 3920, 5398, 7840, 10796, 13495, 18893, 21592, 26990, 37786, 43184, 53980, 75572, 86368, 94465, 107960, 132251, 151144, 188930, 215920, 264502, 302288, 377860, 431840, 529004, 604576, 661255, 755720, 1058008, 1322510, 1511440, 2116016, 2645020, 3022880, 4232032, 5290040, 10580080, 21160160]

約数ペア:

[(1, 21160160), (2, 10580080), (4, 5290040), (5, 4232032), (7, 3022880), (8, 2645020), (10, 2116016), (14, 1511440), (16, 1322510), (20, 1058008), (28, 755720), (32, 661255), (35, 604576), (40, 529004), (49, 431840), (56, 377860), (70, 302288), (80, 264502), (98, 215920), (112, 188930), (140, 151144), (160, 132251), (196, 107960), (224, 94465), (245, 86368), (280, 75572), (392, 53980), (490, 43184), (560, 37786), (784, 26990), (980, 21592), (1120, 18893), (1568, 13495), (1960, 10796), (2699, 7840), (3920, 5398)]